Money...$$$!
What is the formula to calculate simple interest?
I = PRT/100
Share one example where Math is used everyday!
Many possible responses!
What 2 triangles are said to be congruence, what does it mean?
They have exactly the same shape and size
What do similar figures have in common?
They have same shape but different size.
They have equal corresponding angles.
The corresponding sides have equal ratios
Who discovered the famous equation: a2 + b2 = c2
Of course is Pythagoras
The formula to calculate simple interest is: I = PRT/100. What does 'P' refer to?
P stands for Principal sum or principal amount.
that is the amount deposited into a bank or can be the amount loaned from the bank
1 Singapore Dollars = 3.19 Malaysian Ringgit.
Eden will be going to JB for the coming long weekend, how much ringgits can he get if he exchanges 150 Singapore Dollars?
478.50 Ringgit
What are the congruent shapes that can be found on the Singapore Flag?
The 5 stars!
Triangle PQR and triangle EFG are similar.
If PQ is twice the length of EF, which triangle is bigger?
Triangle PQR
What is the length of the longest side?
5 cm
Aqila invested $3000 in Bank of Elfie. Find the total amount of interest he earned at the end of 3 years.
$180
The exchange rate between Philippine pesos (₱) and Singapore dollars (S$) was ₱100 = S$2.59.
Convert ₱35 000 to Singapore dollars.
S$906.50
Triangle ABC and triangle XYZ are congruent.
If Angle A is 30 degrees, angle B is 45 degrees, what is the size of angle X?
Angle X = angle A = 30 degrees
Triangle PQR and triangle EFG are similar.
PQ is twice the length of EF.
If QR is 6 cm, how long is FG?
FG = 6 / 2 = 3 cm
A football fields meaures 105 m by 68 m. Zed was late for his football practice and he asked to run diagonally across the field as a form of punishment.
How far did Zed run?
125 m ( 3 s.f.)
Afsheen invested $3000 in Bank of Celeste. Find the total amount of money in her account at the end of 3 years,
Total amount of money in his account = principal sum + total interest earned
= $3000 + $180
= $3180
Jacob bought a laptop for $2400. He paid a deposit of 20% of the price followed by 12 equal monthly instalments. Find the cost of each monthly instalment.
Total instalments = 80% of $2400
= 80/100 × $2400
= $1920
Monthly instalment = $1920 /12
= $160
The cost of each monthly instalment is $160.
Triangle ABC and triangle XYZ are congruent.
If Angle A is 30 degrees, angle Y is 45 degrees, what is the size of angle Z?
Angle Z = 180 - 30 - 45 = 105 degrees
A pirate's map says:
The small triangle and the large triangle are similar. The small triangle has sides 4 cm, 6 cm, and 8 cm. The longest side of the large triangle is 20 cm.
Find the other two sides of the large to unlock the treasure."
Answer: 10 cm and 15 cm
A TV screen has a height of 24 cm and a width of 32 cm.
Without measuring it, can you find the length of the screen's diagonal?
40 cm
Alfonso borrowed $90 000 from Dean's Bank for a period of 7 years. The bank charged a simple interest of 2.5% per annum. Find the total amount he paid the bank at the end of 7 years.
$105 750
Ethan has $100. He wants to buy:
There is a 10% discount on the total purchase.
a. What is the total cost before the discount?
b. How much is the discount?
c. How much does Ethan pay?
d. How much money does he have left?
a) $25+$35+$8=$68
b) 10%×$68= 0.10×68= $6.80
c) $68−$6.80=$61.20
d) $100−$61.20=$38.80
Sing the National Day song that has "5 stars" in the lyrics
There are 5 stars arising, out of the stormy sea..
Which Triangle is Fake? (Reasoning)
2 students claim their triangles are similar.
Student A
Student B
Question: Which student is mistaken?
Can It Reach? (Reasoning)
A firefighter has a 13 m ladder.
The bottom of the ladder is placed 5 m from a wall.
Question: Will the ladder reach a window that is 12m above the ground?
Answer: Yes! The ladder reaches the window exactly.